My yarn came out really well! It is a little greyer than I wanted but the bathroom light where it is drying is pretty bad. I can't wait to look in the natural light in the morning! I also had quite a bit of extra dye in the water (I doubled the recommended amount to ensure I got a dark, rich color per the internet) so I tie-dyed some old grungy pillowcases. They came out a medium purple-blue and are a lot of fun.
So, if you have not threadbare but stained old sheets, I highly recommend tie-dying them or just dying them with some RIT dye for new life.